*{
    margin:0;
    padding:0;
}
#menu{
    width:250px;
    margin:100px auto;
}
#menu a{
    display:block;
    text-decoration:none;
    text-align:center;
}
#menu>ul>li{
    list-style:none;
    background:lightcoral;
    border-top:1px solid #fff;
}
#menu>ul>li ul{
    height:0;
    overflow:hidden;
}
#menu>ul>li li{
    list-style:none;
    background:lightsalmon;
    border-bottom:1px solid #fff;
}
